Variable-speed governor



T. B." 'FUNKAND c. M. EAsoN.

VARIABLE SPEED'GOVERNOR. APPLICATION man luLYa lAlAGS.

1920. R'ENEwr-:D Dsc. 9, 1921.

Patented Mar. 2L' 1922;

2 SHEETS-SHEET l.

T. B. FUNK AND c. M. EASON.

VARIABLESPEED GOVERNOR. A APPLICATION FILED JULY 3|, 1920. REIIEWED DEC- 9, 1921.` 1,410,463. Patented Mar. 2l, 1922.

2 SHEETS-SHEET 2.

TRUMAN B. FUNK, OF MOLINE, ILLINOIS,

AND CLARENCE M. EASON, @E HABJRSON,

VARIABLE-SPEED GOVERNOR.

LeilOAfB.

i To all whom if may concern.'

Be it known that we, TRUMAN B. FUNK and CLARENCE M. Eason, both citizens of the United States, residing at Moline, Rock `Tsland County, Illinois, and at Harrison, Hudson County, New Jersey, respectively, have invented certain new and useful Improvements in Variable-Speed Governors, of which the following is a specification.

The governor of the present invention is intended primarily for use on tractors for the purpose of maintaining a substantially uniform engine speed within a selected range, irrespectiveof variations in the load.

The mechanism is so designed that the eectiveaction of the governor weights can be adjusted with due regard to the intended speed, whether slow, medium,l or fast, with the result that Within the selected range the governor will become effective to regulate the throttle and thereby the speed of the engine.

The present invention consists in the features of construction and combinations of parts hereinafter described and claimed.

In the drawings:

Figure 1 is a sectional elevation through the housing, showing the weights in idlev position; Y

Fig. 2 is an elevational view ofthe housing top7 showing the adjusting and regulating arms protruding therefrom;

Fig. 3 isa cross sectional view, taken oni line 3 3 of Fig. l;

F i0. 4 is a to or )lan view of the hous h in and iig. 5 is a side elevatioiiot the housing,

showing the working mechanism in dotted` lines.

The governor comprises a cup shaped housing l0 closed by means of a cap ll. The housing at its lower end terminates in aneck 12 providedy at the point Vof merger with the housing wit-ha flange 13 adapted to be secured to any suitable portion of the engine structure. Theneclr 12 is bored to receive a rotatable spindle 14 which receives rotation from any suitable portion of the engine. The spindle is longitudinally bored to receive a spring l5 which bears against thelower end of a stem 1G provided on. opposite Specification of Letters Patent. Pggtted MMU" 2L j rpgg Application filed July 31, 195%),Seria1 No. 400,328. Renewed December' 9, 1921.

Serial No. 521,250.

sides with raclr teeth 17 which mesh with oppositely disposed segmental racks 18. each rack extending upwardly from a governor weight 19 of bowed formation andv configured to embrace the exterior of a sleeve 20, which is provided with a slot 2l contiguous to which the metal is protruded to furnish ears 22, between which the weights are pivoted upon pins 23, as shown in Fig. l. The wall of the spindle let is slotted on each side at the point 24 to afford an entrance for the contiguous segment 1S, and the slot is of suliicient length to permit of a limited rolling movement 0f the segment upon the rack. when held in fixed position, without inter-y ference with the wall of the spindle.

The sleeve 20, as shown in Fig. 3, is provided with vertically extending slots 25 naled through a boss 33' on one side of the cap. The protruding end of the spindle S2 has clamped thereon a hand adjusting lever 34C adapted to be adjustedby the operator to regulate the speed range within which the effective operation of the governor is to be secured. i

The upper end of the stem 1 6 bears against a lrnob 35 backed by a spring 36, which knob projects inwardly from a collar 37 mounted upon the rocking stem 38 which is j ournaled within a boss 39 foimed on the housing` cap in opposed relation to the boss The protruding end of the stein 38 has clamped thereon a control arm 40 the movements of which regulate the throttle of the engine.

When it is desired to control the engine at a low speed range, the parts will be adjusted as shown in Fig. l, that is to say, the adjusting lever 34 will be turned in a proper direction to move the lngers 30 to such posi the stem against the tension of the spring l5, and this retract-ion of the stem will permit the lrnob 35 to descend under the tension of the springl 36, thereby rocking the spindle 38, With the throttle control lever mounted thereon, in such` direction-as to partially` close the throttle and thereby reduce the glas supply to the degree requiredv to restore the engine to its intended speed of operation.

W'hen it is desired to establish a higher speed range. thel adjtif-sting:y lever moved inV the proper direction to lift the .fingers 30 to a selected degree, and thereupon the geven nor weights will not act to elfocta closing movement of the throttleA connections until the centrifugal action oftheiveights has def veloped to a point such to cause` the sleeve-.201 to ride upon the spindle lilthrough the intermeshing of the gear teeth tothe extent required to bringfthe disk 2S into contact with the fingers 30, after which a 'further riding movement ofthe part-s is prevented, so that thereafter a continued movement of the Weights Will have the effect of forcing down the-'stemlG and eifecting a closing moi-'ement of the throttle within the higher speed-.range established by the adjustment of the stop :lingers 30. s

It Will thus be seen that the fingers 30 can be moved to anyA desired position of adjustment so that an indefinite number of variations in the speed vrange desired can be easily ei'ft'ected,l and thereafter the governor will automatically maintain the running` speed ofv the engine Within the selected-range irrespective of load conditions, which would otherwisetend to effect variations in the en; gine speed commensurate-.With variations in the load.

The governor of t-he present-invention. is

particularly serviceablein cases where deli-Y cacy of adjustment is desired, althoughequally serviceable under all conditions.

In the governor of the present invention, changes in adjustment to effect different speeds`r do not affect the tension of thespring 15.y The centrifugal action being in a radial direction, theV more nearljT the Weightsv approach their equatorial position, the less will be the component of radial force which is effective to impartv a vertical movement to the spindle 6, Which effects the closingof the throttle, but asl the Weights, under een trifugal action recede more and more from their normal vertical position, a constantly incr-easing. speed Will be required to develop the forcenecessaryto overeomethe spr-ing tension.

'hel d .ling n nilo/ies In other Words, a high speed adjustment involves a condition in which the Weights will be required to assume a comparatively wide angle of divergence with a corresponding,l ineffective lever action before they begin to exert a pressure tending to compress the spring, so that in this range of adjustment, the centrifugal forces ivill have to kbe correspondingly greater.'

live claim:

l. In a variable speed governor, the combination of va governor Weight, a throttle controlling-member Aadapted to `bemoved by the Weight when subjected to centrifugal action, a mounting,` for the `Weight movable with respect tothe throttlecontrolling member, and .adjustimgV means for changingY the range of free movement of said mounting whereby continued centrifugal movement of said Weight thereafter VWill ed'ecta, morement of said throttle controllingmember, substantially asdescribed.V

2. ln a variable' speed governor, theoombination, ofA a. throttle controlling member, a

weight responsiveVV to centrifugal action, al mounting: fory said Weightmovable With re-V spect tothe throttle controlling member-coacting means oir-the Weight and throttle conV trolling member respectively for edeeting a movement of thevthrottle controlling mein# ber when the mounting for the Weight is held inixed relation thereto, and adjusting means for lvarying-the position to which the Weight mounting' may movebefore being` in fixed' relation to the throttle controlmember, substantially as described.

o. In a va iable speed governor, the combination of a throttle controlling, member, a Weight responsive to centrifugal action, a mounting for said weight movablewvith re spect to the throttlev controlling member,

Agear teeth onf the Weight and"thrrfttlel controlling; member respectively for eectinga movement Vof' the throttle controlling member'when the mounting for the ,Weight is held in fixed relationthereto, and adjusting means for Varyingftheposition at which the Weight mounting is held inl fired relation tothe throttle controlling member, substan;V

tially as described.

t. A. variable speed governor, the combination of.' a throttle,` controlling :stel/rr.` a Weight mountingv slidable with respect tothe stem, the Weight carried` by the Weight mounting, co-actingV gear teeth upon the weight and steinrespeetively, the, weight mounting-and Weightbeing adaptedto ride upon the stemthrough the co-aet-ion of the gearyteeth-under'the influence of centrifugal action, Vand adjustablegstop mechanisml for varying the position at,1 which` the Weight mountingr'vvvill'be stopped whereby centrif unal action WillT thereafterbe: effected to move the throttle ,controlling stem, substantially as described, i l

All() v bination of a housing, a rotatable spindle` Cyl 5. In a variable speed governor, the co1nentered into the housing, a stem slidably mounted within the spindle and rotatable therewith, the weight mounting slidable upon the spindle, a. weight carried by the housing' and responsive to centrifugal action, co-acting means on the weight and stem adapted to ee'ct relative movement between the stem and the weight mounting, and an adjustable stop member adapted to vary the position at which the weight mounting is stopped whereby centrifugal action will thereafter be effective to impart a movement to the stem, and throttle control connections actuated by movements of the stem to Control the throttle, substantially as described.

(i. In a variable speed governor, the combination of a housing, a rotatable spindle entered into the housing, the stem slidablv mounted within the spindle and rotatable therewith, the weight mounting slidable upon the spindle, a weight carried by the housing and responsive to centrifugal action, intermeshing;- rack teeth on the stem and gear teeth on the weight adapted to eiti'iect a relative movement between the stem and the weight mounting, an adjustable stop member adapted to vary the position at which the weight mounting` is stopped whereby centrifugal action will thereafter be el'ective to impart a movement to the stein, and throttle control connections actuated by movements et the stem to control the throttle, substantiallyy as described.

7.' In a. variable speed geveriior. the combination of a housing, a. rotatable spindle entered into the housing. a spring pressed stem4 slidably mounted within the spindle and rotatable therewith. a slidable mounting rotatable with the spindle, a pair 01"' weights pivoted upon the mounting` and each provided wth a. gear segment, rack teeth on the stem meshing with the gear segments whereby centrifugal action will effect relative movement between the stem and weight mounting, an adjustable stop member adapted to limit the relative movement between the stem and weight mounting so that centri'lfugal action will thereafter be effective to move the stem, and means actuated by movements of the stem for regulating the throttle, substantially as described.

S. In a variable speed governor, the combination ot' a housing, a rotatable spindle entered into the housing, spring pressed stem slidably mounted within the spindle and rotatable therewith` a slidable mounting rotatable with the spindle, pair ot weights pivoted upon the mounting and each provided with a gear segment, rack teeth on the stem meshing with the gear segments whereby centrifugal action will elect relative movement between the stem and weight mounting, an adjustable stop member adapted to limit the relative movement between the stem and weight mounting so that centritugal action will thereafter be 'effective to move-the stem, a spring pressed member in contact with the stem. and connections operated by said spring j )ressed'member iior regulating the throttle, substantially as described.

9. In a variable speed `governor, the combination of a housing, a rotatable spindle mounted within the housing, a spring pressed stem slidably mounted within th spindle, a weight mounting carried by the spindle and slidable with respect to the stem, a pair ot weights pivoted to the mounting and responsive to centrifugal action,connections between' the weights and. stem 'for effecting relative movement between the weight mounting and the stem through centrifugal action, a pivoted stop member adapted to limitthe movements ot the weight mountingwhereby centrifugal actionv will thereafter be eiiective to move the stem, a lever adapted to rock the stop member on its pivot and thereby adjust the same to varying positions, and throttle control connections engaged by the stem and adapted to regulate the throttle, substantially as described.

10. In a variable speed governor, the combination of a governor weight, a throttle controlling member adapted to be moved by the weight when subjected to centrifugal action, a springon the throttle controlling member in opposition to the weight, and adjusting means for varying the position at which the weight becomes eiiective through centrifugal action to etlect movement of the throttle controlling member against the action of the spring. substantially as described.

1l. In a variable speed governor, the combinationoi: a governor weight, a throttle controlling member adapted to be moved by the weight when subjected to centrifugal action, a spring acting at constant pressure on the throttle cont olling member in opposition to the weight, and adjusting means for varying the position which the weight becomes effective through centrifugal action to eiieet movement ot the throttle controlling member against the action of the spring,

`substantially as described.

l2. In a. variable speed governor, the coinbination of a governor weight mounted for rotary movement and pivoted to move from a rest position in substantial alignment with its aXis of rotation to a position transverse to the axis under the influence of centrifugal action, a throttle controlling member adapted to be moved by the weight when the latter is centr'ii'ugally moved. means for ez;- erting a constant action on the throttle controlling member in opposition to the action effected by the weight, and adjusting means I `for e'fectng the selection of a zene Within the ultimate range of movement of the Welght wthln Whlch Zone the Welght 1s effectue te impart the required amount of l movement to the throttle eontrolng member to cloe the throttle against the forces opposed thereto, the eI'eCtve lever action of scribed.

TRUMN l.. FUNK. CLARENCE M. Meert. 

